An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

Exact replica of the ancient monument, but much, much lighter.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.

Outsider art meets paleontology at this roadside reptile repository.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

Explore the History & Technology of Electronic Communication

A museum dedicated to the exploring past, present, and future innovations.

The only arched bridge made of stone on the entire Mississippi River.

Hub of Scandinavian culture in a Minneapolis deli.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

When flour explodes, it's not a pretty sight.

A butcher shop in Minneapolis has all the meats and cheeses you’d expect from any of its kind—except that all the products are vegan.

20,000 pieces in a Frank Gehry-designed building.

Funhouse of found art and participatory sculpture.

Even with its slightly risible name this colossal cross is still able to inspire awe.

A 30-foot man on a penny-farthing bicycle rides along the banks of the Mississippi.

This lagomorph-obsessed Route 66 emporium is home to a giant jackrabbit that sits in a bunny graveyard.

This life-size bronze statue remembers the tallest recorded human in his Illinois hometown.

In the Shawnee National Forest, amazing rock formations peer through the treeline.

This abandoned 19th century orphanage started as a boarding school for children of Civil War veterans.

Buy a token from the liquor store and you can make this beast spew flames on command.